Consider a straight piece of copper wire of length 9.5 m and diameter 2.5 mm that...
Consider a straight piece of copper wire of length 9.5 m and
diameter 2.5 mm that carries a current I = 11 A. There is a
magnetic field of magnitude B directed perpendicular to the wire,
and the magnetic force on the wire is just strong enough to
“levitate” the wire (i.e., the magnetic force on the wire is equal
to its weight). Find B. Hint: The density of copper is 9000
kg/m3 .
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Consider a straight piece of copper wire of length 9.5 m and
diameter 2.5 mm that...
Consider a straight piece of copper wire of length 8 m and diameter 8 mm that...
Consider a straight piece of copper wire of length 8 m and diameter 8 mm that carries a current I = 4.5 A. There is a magnetic field of magnitude B directed perpendicular to the wire, and the magnetic force on the wire is just strong enough to “levitate” the wire (i.e., the magnetic force on the wire is equal to its weight). Find B. Hint: The density of copper is 9000 kg/m3 .
A copper wire has diameter 0.180 mm and length 20.0 cm . It’s in a horizontal...
A copper wire has diameter 0.180 mm and length 20.0 cm . It’s in a horizontal plane and carries a current of 2.05 A . The density of copper is 8920 kg/m3. A. Find the magnitude of the magnetic field needed to suspend the wire against gravity. B. Find the direction of the magnetic field needed to suspend the wire against gravity. Assume the current points east.
A 1.0-m-long, 1.0-mm-diameter copper wire (mass density 8920 kg/m3 ) carries a current of 50 A...
A 1.0-m-long, 1.0-mm-diameter copper wire (mass density 8920 kg/m3 ) carries a current of 50 A to the east. Suppose you want to levitate the wire by applying an externally created magnetic field. What field strength and direction do you need?
Constants Suppose a straight 1.15 mm-diameter copper wire could just "float" horizontally in air because of...
Constants Suppose a straight 1.15 mm-diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 3.1 10-5T
A long, straight wire of length 1.2 m carries current I = 1.6 A. If a...
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Suppose a straight 1.55 mm -diameter copper wire could just "float" horizontally in air because of...
Suppose a straight 1.55 mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B⃗ , which is horizontal, perpendicular to the wire, and of magnitude 4.4×10−5 What current would the wire carry? Does the answer seem feasible?
Suppose a straight 1.80 mm -diameter copper wire could just "float" horizontally in air because of...
Suppose a straight 1.80 mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B⃗ , which is horizontal, perpendicular to the wire, and of magnitude 6.9×10−5 T . What current would the wire carry? Does the answer seem feasible?
a) Suppose a straight 1.40 mm -diameter copper wire could just "float" horizontally in air because...
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Ch. 20 #3 Suppose a straight 1.20 mm -diameter copper wire could just "float" horizontally in...
Ch. 20 #3 Suppose a straight 1.20 mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B⃗ , which is horizontal, perpendicular to the wire, and of magnitude 4.1×10−5 T . Part A: What current would the wire carry? Part B: Does the answer seem feasible? yes no
8. Two long straight copper wires of diameter d = 0.2 mm are parallel to each...
8. Two long straight copper wires of diameter d = 0.2 mm are parallel to each other, one above the other, at a distance of 1 mm (measured center to center). The mass density of copper is 8.96 g/cm3. a) Compute the weight of a wire, per meter. b) If you run a current / through both wires you could, in principle, suspend the lower wire, i.e. make the magnitude of the magnetic force on it equal to its weight....
Constants Suppose a straight 1.15 mm-diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 3.1 10-5T
8. Two long straight copper wires of diameter d = 0.2 mm are parallel to each other, one above the other, at a distance of 1 mm (measured center to center). The mass density of copper is 8.96 g/cm3. a) Compute the weight of a wire, per meter. b) If you run a current / through both wires you could, in principle, suspend the lower wire, i.e. make the magnitude of the magnetic force on it equal to its weight....
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